Abstract
Traditional just war theory maintains that the two types of rules that govern justice
in times of war, jus ad bellum (justice of war) and jus in bello (justice in war), are
logically independent of one another. Call this the independence thesis. According to
this thesis, a war that satisfies the ad bellum rules does not guarantee that the in bello
rules will be satisfied; and a war that violates the ad bellum rules does not guarantee
that the in bello rules will be violated. A controversial implication of this is that it’s
possible for soldiers to undergo acts that are instrumental in bringing about victory
in an unjust war and yet do nothing morally wrong. Some authors – call them purists
– claim that this cannot be correct. Participating in an unjust war is by itself morally
wrong. Yitzhak Benbaji has given what is to my mind the strongest defense of the
independence thesis. In this paper I critically examine Benbaji’s argument and
conclude that it is not persuasive. My argument against Benbaji incorporates the
concept of honor in the military. I seek to show, in part, that if the recent literature
is correct concerning both the nature of honor and the importance of instilling it in
soldiers, then Benbaji hasn’t given the purist a compelling reason to give up her view.